Frequently Asked Questions

Everything you need to know about shopping with NiiHAi.

How long does shipping take?

Standard shipping typically takes 3-5 business days within the UK, while international orders can take 7-14 business days depending on your location and customs processing.

What is your return policy?

We offer a 14-day return window from the date you receive your order. Items must be unworn, in their original packaging, and with all NiiHAi tags still attached.

How do I know which size to choose?

Each product page features a detailed size guide tailored to the specific garment's fit. If you are between sizes, we generally recommend sizing up for our bodycon styles.

Do you offer international shipping?

Yes, we ship worldwide. Please note that international orders may be subject to import duties and taxes, which are the responsibility of the customer.

Which payment methods do you accept?

We accept all major credit cards (Visa, Mastercard, American Express), PayPal, and buy-now-pay-later options like Klarna and Clearpay.

Can I change or cancel my order after it's placed?

Our warehouse processes orders quickly, so we can only make changes if the order hasn't been fulfilled yet. Please contact our support team immediately if you need to modify your details.